Portable steam-engine



(No Model.) 4 I 2 Sheets-Sheet 1.

E. HOWLAND. I

PORTABLE STEAM ENGINE. No. 443,481. Patented Dec. 23, 1890.

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PORTABLE STEAM ENGINE.

No. 443,481. PatentedDec. 23, 1890.

dwidi ma. WM W4 5 7 ywwfigfiwggm July 3, 1888, No. 385,627, in which a thrash F UNITED STATES PATENT OFFICE.

EPIIRAIM HOWLAND, OF PONTIAC, MICHIGAN.

PORTABLE STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 443,481, dated December 23, 1890.

Application filed February 12, 1889. Renewed November 28, 1890. Serial No. 372,877. (No model.)

To all whom it may concern.-

Be it known that I, EPHRAIM HOWLAND, a citizen of the United States, residing at Pontiac, county of Oakland, State of Michigan, have invented a certain new and useful Improvement in Portable Steam-Engines; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

I11 the drawings, Figure 1 is a side elevation of a thrashing-machine or separator embodying my invention. Fig. 2 is a plan View of a portion of the sills of the machine, showing how the engine attachment may be applied. Fig. 3 shows a side elevation, and Fig. 4 an end elevazion, of a portable engine with bed-plates adapted to receive the said engine.

My invention has relation to an apparatus such as described in Letters Patent to me of ing-machine is provided with a steam-engine located thereon and steam supplied from a Sortable boiler through a flexible steam-conuit.

The present invention consists, essentially, in a construction of the portable steam-boiler and the engine in such relative manner that the engine may be located on and readily attached to the thrashing or other machine when required for the purpose, but so constructed with relation to the portable steam-boiler that it may be removed from the machine and secured upon the boiler, thus converting the latter into an ordinary portable steam-engine capable of use for any purpose.

In carrying out my invention, A represents a thrashing-machine or separator. B is a steam-engine located thereon. C is a portable steam-boiler.

The steam-engine is provided with any suitable bed-piece I), provided with any necessary standards or other fittings 1), whereby it may be readily attached to the sills of the thrashing-machine or separator. These fittings or standards of course will have to be somewhat different for thrashing-machines of difierent construction to meet the peculiar requirements of each particular type of machine. So, also, the general frame-work may be varied to conform to any particular construction of engine. The bed I) is provided with suitable bearings for the drive-shaft D, to which the pitman or pitmen of the engine or engines may be engaged. The portable boiler is provided with bed-plates or supports 0, so shaped and fitted with respect to the bed b of the engine that when the engine is removed from the machine it will fit upon and may be attached to the said bed-plates or supports G of the boiler.

The steam-chest B of the engine is provided with suitable steam admission and exit openings, into which may be tapped or other wise engaged the steam-supply pipe E and exhaust E, as shown on the machine in Fig. 1, and when placed on the boiler the steamchest is adapted to receive a suitable steamsupply pipe E and. exhaust E as shown in The engine may be provided with one set of pulleys D when on the machine, and the same may be displaced and difierent pulleys or drive-wheels D be employed when it is transferred to the steam-boiler.

The steam-engine may be of any type, either a single cylinder and pitman, or twin en gines on a single bed, orany two-piston engine; but I prefer, some form in which two pistons are used and that they be connected to cranks on the drive-shaft at an angle with each other.

WVhat I claim is- The combination, with the boiler and bedplates or supports thereon, of an engine detachably connected to said supports, and a flexible steam-connection between the engine and the boiler, substantially as described.

In testimony whereof I sign this specification in the presence of two witnesses.

EPI-IRAIM HOl/VLAND.

\Vitnesses:

W. H. OHAMBERLIN, L. A. DoELTz. 

